CN221145241U - A reduction gear for putting motor is integrated in - Google Patents
A reduction gear for putting motor is integrated in Download PDFInfo
- Publication number
- CN221145241U CN221145241U CN202323282419.4U CN202323282419U CN221145241U CN 221145241 U CN221145241 U CN 221145241U CN 202323282419 U CN202323282419 U CN 202323282419U CN 221145241 U CN221145241 U CN 221145241U
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- Prior art keywords
- speed reducer
- motor
- gear
- box body
- driving gear
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 77
- 230000010354 integration Effects 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 11
- 238000009423 ventilation Methods 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a speed reducer for the integration of a central motor, and relates to the technical field of central motors for electric motorcycles. The speed reducer for the middle motor integration comprises an output gear shaft, a driving gear and a speed reducer box body, wherein meshing teeth are arranged on the output gear shaft, the driving gear is arranged on a motor shaft of the motor, and the driving gear is in meshing connection with the meshing teeth on the output gear shaft; the driving gear and the meshing teeth are positioned in the speed reducer box body, and the output end of the output gear shaft extends out of the speed reducer box body; the speed reducer box body is formed by splicing a gear box cover and a speed reducer bottom cover, and the speed reducer bottom cover and a front end cover of the motor are integrally formed. The speed reducer for the middle motor integration is characterized in that the speed reducer box body and the motor are designed into a whole, so that the assembly volume of the speed reducer for the middle motor integration is reduced, the transmission loss is reduced, the speed reducer has the characteristics of high power, high rotating speed and light weight, the power density of the electric drive assembly is greatly improved, and the power performance is strong.
Description
Technical Field
The utility model relates to the technical field of centrally-mounted motors for electric motorcycles, in particular to a speed reducer for integrated centrally-mounted motors.
Background
The electric motorcycle is a traffic tool taking the storage battery as an energy source, and is deeply favored by people due to the characteristics of green and environment-friendly, convenient trip, low running cost and the like.
Most of motors used on electric motorcycles in the current market are hub motors, and according to the standards of electric motorcycles, the speed of the motor must reach more than 50km/h, and the hub motors are limited in motor power due to installation size. For electric motor vehicles with high vehicle speeds, if a driving mode of directly transmitting to driving wheels by using a chain wheel or a synchronous belt without a centrally-mounted motor with a gear reduction mechanism is adopted, the volume and the manufacturing cost of the motor are increased, and meanwhile, the motor cannot be reasonably arranged and installed due to insufficient space.
Disclosure of utility model
In order to solve the technical problems, the aim of the utility model is realized by the following technical scheme.
The utility model provides a speed reducer for a centrally-mounted motor integration.
The output gear shaft is provided with meshing teeth, the driving gear is arranged on a motor shaft of the motor, and the driving gear is in meshing connection with the meshing teeth on the output gear shaft; the driving gear and the meshing teeth are positioned in the speed reducer box body, and the output end of the output gear shaft extends out of the speed reducer box body.
The speed reducer box body is formed by splicing a gear box cover and a speed reducer bottom cover, and the speed reducer bottom cover and a front end cover of the motor are integrally formed. The gear box cover and the front end cover of the motor are integrally formed, so that the volume of the centrally-mounted integrated speed reducer can be reduced.
Furthermore, the gear box cover and the speed reducer bottom cover are fixed through a plurality of positioning sleeves, screws are distributed on the periphery to be used for fixed connection, the fixed connection of the positioning sleeves can improve the assembly precision between the speed reducer members, and the meshing position of the output gear and the meshing teeth is ensured to be accurate. The utility model can be applied to high-speed motors with rotation speed of 10000 rpm or more.
Preferably, the speed reducer and the motor are fixed through a plurality of positioning sleeves, and the screws are distributed at the periphery for fixed connection.
Further, a sealing gasket is arranged between the gear box cover and the bottom cover of the speed reducer.
Furthermore, a framework oil seal is arranged between the output gear shaft and the gear box cover, and the framework oil seal can improve the air tightness of the speed reducer.
Furthermore, the speed reducer box body is provided with an oiling bolt and an oil discharging bolt, and the oiling bolt and the oil discharging bolt are arranged on the speed reducer box body and are convenient for replacing gear lubricating oil in the speed reducer at regular intervals.
Furthermore, the speed reducer box body is also provided with a ventilation cap, and the ventilation cap can effectively balance the pressure between the inside of the speed reducer and the outside of the speed reducer.
Further, the oiling bolt and the ventilation cap are positioned on the same side of the speed reducer box body, and the oil drain bolt is positioned on the other side of the oiling bolt opposite to the ventilation cap.
Furthermore, the two sides of the driving gear are provided with driving gear bearings, the driving gear bearings are sleeved on the motor shaft, and the bearings are used for reinforcing the driving gear and ensuring the stability of the motor during high-speed operation.
Furthermore, output gear shaft bearings are arranged on two sides of the output gear shaft and used for reinforcing the output gear shaft, so that the stability of the motor during high-speed operation is ensured.
Furthermore, the driving gear is connected with the motor shaft through spline fit, so that the connection between the motor and the gear reduction structure is more reliable, and the power transmission is more stable.
The utility model provides a speed reducer for the integration of a centrally-mounted motor, which comprises an output gear shaft, a driving gear and a speed reducer box body, wherein meshing teeth are arranged on the output gear shaft, the driving gear is arranged on a motor shaft of the motor, and the driving gear is in meshing connection with the meshing teeth on the output gear shaft; the driving gear and the meshing teeth are positioned in the speed reducer box body, and the output end of the output gear shaft extends out of the speed reducer box body; the speed reducer box body is formed by splicing a gear box cover and a speed reducer bottom cover, and the speed reducer bottom cover and a front end cover of the motor are integrally formed. Unlike traditional motors, the speed reducer for the integrated central motor is formed by fixedly connecting a speed reducer box body with the motor, is designed as a whole, reduces the assembly volume of the speed reducer for the integrated central motor, and reduces transmission loss; the speed reducer for the middle motor integration has the characteristics of high power, high rotating speed and light weight, greatly improves the power density of the electric drive assembly, greatly improves the wheel rim output torque of the electric motor and has strong power performance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a speed reducer assembly for a central motor integration according to an embodiment of the present utility model.
Fig. 2 is a cross-sectional view of a decelerator for a center motor integration according to an embodiment of the present utility model.
Fig. 3 is a side view of a decelerator for a center motor assembly in accordance with an embodiment of the present utility model.
Fig. 4 is a schematic diagram of an assembly structure of a positioning sleeve for a speed reducer integrated with a central motor according to an embodiment of the present utility model.
The figure identifies the description:
1-a motor; 11-a motor shaft; 12-motor housing; a 2-speed reducer; 21-a reducer housing; 22-a drive gear; 23-an output gear; 24-a ventilation cap; 25-oil drain bolts; 26-oiling bolts; 27-framework oil seal; 28-sealing gasket; 29-gear box cover; 30-positioning sleeve.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.
It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
In the embodiments of the present utility model, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.
The terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
The terms "parallel", "perpendicular", and the like do not denote that the components are required to be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel than "perpendicular" and does not mean that the structures must be perfectly parallel, but may be slightly tilted.
The terms "horizontal," "vertical," "overhang," and the like do not denote that the component is required to be absolutely horizontal, vertical, or overhang, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
Furthermore, the terms "substantially," "essentially," and the like, are intended to be limited to the precise form disclosed herein and are not necessarily intended to be limiting. For example: the term "substantially equal" does not merely mean absolute equal, but is difficult to achieve absolute equal during actual production and operation, and generally has a certain deviation. Thus, in addition to absolute equality, "approximately equal to" includes the above-described case where there is a certain deviation. In other cases, the terms "substantially", "essentially" and the like are used in a similar manner to those described above unless otherwise indicated.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples
Please refer to the decelerator for the center motor integration shown in fig. 1-4.
The speed reducer integrated with the middle motor comprises an output gear shaft 23, a driving gear 22 and a speed reducer box body 21.
The output gear shaft 23 is provided with meshing teeth, the driving gear 22 is arranged on the motor shaft 11 of the motor 1, and the driving gear 22 is in meshing connection with the meshing teeth on the output gear shaft 23; the driving gear 22 and the meshing teeth are positioned in the speed reducer box 21, and the output end of the output gear shaft 23 extends out of the speed reducer box 21.
The reducer case 21 is formed by splicing a gear case cover 29 and a reducer bottom cover, and the reducer bottom cover and the front end cover of the motor 1 are integrally formed. The gear box cover 29 and the front end cover of the motor 1 are integrally formed, so that the volume of the centrally-mounted integrated speed reducer can be reduced.
The gear box cover 29 and the gear bottom cover are fixed through a plurality of positioning sleeves 30, screws are distributed on the periphery for fixed connection, and the fixed connection of the positioning sleeves 30 can improve the assembly precision between the gear components and ensure the accurate meshing position of the output gear 23 and the meshing teeth. The utility model can be applied to high-speed motors with rotation speed of 10000 rpm or more.
The speed reducer 2 and the motor 1 are fixed through a plurality of positioning sleeves 30, and screws are distributed on the periphery for fixed connection.
A gasket 28 is provided between the gear case cover 29 and the bottom cover of the reduction gear.
A skeleton oil seal 27 is arranged between the output gear shaft 23 and the gear box cover 29, and the skeleton oil seal 27 can improve the air tightness of the speed reducer 2.
The speed reducer box body 21 is provided with the oiling bolt 26 and the oil discharging bolt 25, and the oiling bolt 26 and the oil discharging bolt 25 are arranged on the speed reducer box body 21 so as to be convenient for replacing gear lubricating oil in the speed reducer 2 periodically.
The reducer box 21 is also provided with a ventilation cap 24, and the ventilation cap 24 can effectively balance the pressure between the inside of the reducer 2 and the outside of the reducer 2.
The filler bolt 26 and the vent cap 24 are located on the same side of the speed reducer housing 21, and the drain bolt 25 is located on the opposite side of the filler bolt 26 from the vent cap 24.
The driving gear bearings are arranged on two sides of the driving gear 22, the driving gear bearings are sleeved on the motor shaft 11, and the bearings are used for reinforcing the driving gear and guaranteeing the stability of the motor 1 during high-speed operation.
Output gear shaft bearings are arranged on two sides of the output gear shaft 23 and used for reinforcing the output gear shaft, so that stability of the motor 1 during high-speed operation is ensured.
The driving gear 22 is in spline fit connection with the motor shaft 11, so that the connection between the motor 1 and the gear reduction structure is more reliable, and the power transmission is more stable.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (10)
1. The speed reducer for the middle motor integration is characterized by comprising an output gear shaft, a driving gear and a speed reducer box body;
The driving gear is arranged on a motor shaft of the motor and is in meshed connection with the meshing teeth on the output gear shaft;
the driving gear and the meshing teeth are positioned in the speed reducer box body, and the output end of the output gear shaft extends out of the speed reducer box body;
The speed reducer box body is formed by splicing a gear box cover and a speed reducer bottom cover, and the speed reducer bottom cover and a front end cover of the motor are integrally formed.
2. The decelerator for a center motor assembly of claim 1, wherein the gear box cover and the decelerator bottom cover are fixed by a plurality of positioning sleeves.
3. The decelerator for mid-motor integration of claim 1, wherein a gasket is provided between the gear box cover and the decelerator bottom cover.
4. The reducer for a mid-motor assembly of claim 1, wherein a skeleton oil seal is provided between said output gear shaft and a gear box cover.
5. The speed reducer for the mid-motor integration according to claim 1, wherein a oiling bolt and a discharging bolt are provided on the speed reducer case.
6. The decelerator for mid-motor integration of claim 5 wherein the decelerator housing is further provided with a vent cap.
7. The integrated decelerator for a centrally located motor of claim 6, wherein the oil feed bolt and the vent cap are located on the same side of the decelerator housing, and the oil drain bolt is located on the opposite side of the oil feed bolt and the vent cap.
8. The speed reducer for the central motor integration according to claim 1, wherein the driving gear is provided with driving gear bearings at both sides, and the driving gear bearings are sleeved on the motor shaft.
9. The speed reducer for a central motor assembly of claim 1, wherein output gear bearings are provided on both sides of the output gear.
10. The reducer for a center motor assembly of claim 1 wherein said drive gear is in splined engagement with a motor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323282419.4U CN221145241U (en) | 2023-12-01 | 2023-12-01 | A reduction gear for putting motor is integrated in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323282419.4U CN221145241U (en) | 2023-12-01 | 2023-12-01 | A reduction gear for putting motor is integrated in |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221145241U true CN221145241U (en) | 2024-06-14 |
Family
ID=91383601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323282419.4U Active CN221145241U (en) | 2023-12-01 | 2023-12-01 | A reduction gear for putting motor is integrated in |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221145241U (en) |
-
2023
- 2023-12-01 CN CN202323282419.4U patent/CN221145241U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |